chore(deps): update cachix/install-nix-action digest to fd24c48

Author: renovate[bot]

.github/workflows/build.yml

@@ -24,7 +24,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v5
-      - uses: cachix/install-nix-action@9280e7aca88deada44c930f1e2c78e21c3ae3edd # v31
+      - uses: cachix/install-nix-action@fd24c48048070c1be9acd18c9d369a83f0fe94d7 # v31
       - uses: cachix/cachix-action@v16
         with:
           name: nixpkgs-python

.github/workflows/update.yml

@@ -17,7 +17,7 @@ jobs:
         with:
           ref: main
       - name: Install Nix
-        uses: cachix/install-nix-action@9280e7aca88deada44c930f1e2c78e21c3ae3edd # v31
+        uses: cachix/install-nix-action@fd24c48048070c1be9acd18c9d369a83f0fe94d7 # v31
       - name: Install Cachix
         uses: cachix/cachix-action@v16
         with: